Elbow for conduits for electric wires.



PATENTED MAY 8, 1-906.

A. LUTZ.

C. C. SIBLEY 65 G. ELBOW FOR CONDUITS FOR ELECTRIC WIRES.

APPLICATION FILED DEC 21, 1903. RENEWED 001 23.1905.

K 7. L w w I a 7. JJ a d mm/ a n w o ,U fr @a M 50 snares CLARENCE U.SIBLEY, OF PERTl-i AMBOY, NEW JERSEY, AND GEORGE A.

LUTZ, ()F NEv V YORK, N. Y.

ELBOW FUR GONDUlTS FGR ELECTREC WlRESm Lilo. 820,322.

Iratented May 8, 1906.

Applic tion fil ed December 21, 1903. Renewed October 23, 1906. SerialNo. 284,036.

. which the following is a specification.

.Our'invention relates to improvements in the class of movable elbowsset forth in United States patent of George A. Lute, No. 689,894, datedDecember 31, 1901, adapted for use in connection with conduits for electric wires, which elbows are specially adapted for use in connectionwith the class of conduits shown in the patent to E. D. Page, No.667,567, dated February 5, 1901, in which a channel-like conduit isprovided with a removable cover.

The object of our invention is to so im prove such elbows as to providea bond-like connection between the elbow and the adjacent ends ofconduits and to provide means for securely connecting the elbow with theconduits and to these and other ends our invention comprises the noveldetails of improvement that will be more fully hereinafter set forth andthen pointed out in the claims.

Referenceis to be had to the accompanying drawings, forming parthereof,wherein- Figure 1 is a face view of an elbow embodying our invention,showing a conduit in line with one end thereof. Fig. 2 is a sectionsubstantially on the line 2 2 in Fig. 1 looking in the direction of thearrows. Fig. 3 is a side view looking from the left in Fig. 1. Fig. 1 isa face view of the conduit, showing its main members alined and Fig. 5is a view looking at the back of Fig. 4.

Similar numerals of reference indicate correspondin 'parts in theseveral views.

In the drawings the numerals 1 2 indicate the main members of the elbow,which are shown in channel form, having one side open, adapted toreceive the end portions of co e duits 3. As shown in the drawings, theside walls of the members 1 2 have opposed grooved portions 1 2 adaptedto receive the con'espondingly-shaped end portions of the conduits 3,whereby the grooved portions 3 of the conduits will enter the groovedportions of the members 1 2, so that the grooves in the elbow membersand in the conduits will aline to permit the passage of the cover 4 ofthe conduits along the elbowmembers. The conduits 3 and their covers, asshown, are generally of the character set forth in Patent No. 667,567.The 'members 2 are pivotally connected together, as at 5, so as to ecapable of each other, or alined, as indicated in Figs. 1 and 1, orat'any intermediate an le, all sub stantially as set forth in said atentNo. 689,894. As indicated in the drawings, the members 1 2 have extendedportions 1 2 joined at one ec ge by the pivot 5, one exten- 6o beingturned at an angle to sion being adapted to overlap the other to form aclosed wall in the various adjustment. Within the members 1 2 arelocated relatively short sections or pieces 6, conforming to the shapeof the members 1 2 and the conduits 3, and thus .rovided with groovedportions 6, which ie within the grooved portions 1 2 of the members 1 2,(see Fig. 2,) which sections 6 are preferably about the size of thecorresponding conduit 3 and practically form a continuation thereof whenthe latter are attached to the members 1 2, whereby the grooves 6" alinewith the grooves 3 of the conduit to provide guides for the covers 4.The outer ends of the sections 6 terminate at a distance inwardly fromthe ends of members 1 2 to provide spaces outwardly therebcyond toreceive the conduits 3, whereby the conduits at their end portions areembraced by the members 1 2, and thus the conduits can abut against theends of the sections 6 (see Fig. 1.) to limit the inward. movement ofthe conduits when be ing adjusted. The inner ends of the side walls ofthe members 1 2 are at a distance from the pivot 5 to permit the members1 2 to be swung at angles, and as spaces would be iormed at the angleswe extend the sec tions 6 at one end, as at 6 to a point substantiallyover the pivot continuing to the end. To close the space between theends of members 1 2 opposite the parts 6*, we provide a flexible strip7, which is secured to one member, as 2, by bending the end back througha hole in the wall of the member, as in said Patent No. 689,894, and thefree end of said strip passes into a guide or pocket 8, formed betweenthe ing section 6.

bers 1 and 2 are turne on the pivot 5 the positions of.

5, the grooves 6 19 here 1 and 2 serve as and placed over 4 5 we claimis-.

gosaid members provided with 6o tionsenterin the strip 7 slides in theguide or pocketB, and the strip 7 bends as required, timekeeping closedthe space between theends of the members 1 and 2.- I

The arrangements above described are such that the covers i can overlapthe space between the main parts of tl e memb'ers 1 and 2, all wherebyclosed clannelis pro vided in the elbow. Furthermore, the membonds forthe end portions of the conduits, as the ends of the conduits pass intothe members 1' and 2 and are inclosed thereby and by the covers, andthus the joints between the ends of the conduits the sections 6 are alsoinclosed. Means re also provided for securing the ends of the I conduitsto the members 1 and 2 to keep them from displacement in thelongitudinal direction. To this end we provide the ends so of themembers 1 and 2 with one or more prongs adapted to pass through slots 10in thebottom walls of the conduits 3 and to be bent back, as indicatedin Figs. 1 and 2, to lock the parts together. The arrangement 5 5 issuch that the prongs 9 may first bebent at right angles to the member,the conduit 3 the member with the slot 19 in ne with the prong, and thenthe conduit will T be pushed into place in the member and the 3 0 prongnext bent back.

I ur improvements will be found advantageous where conduits of the classdescribed are-to extend at an angle to each other, as the elbowscan bereadily turned to the desired 5- angle and connectedwith the ends of theconduits, and the conductors can bereadilylaid i111 the conduits andelbow and carried around the corners or angle, and then the covers canhe slid along the grooves to,0ver

0 la the conductors.

ai'ious changes can be made in the arrangements shown Without departingfrom the spirit of our invention.

' Having now described'our invention, what 1. An elbow for conduitscomprising a pair of members having channels and provided with-opposedgrooves and niovably connected together, and independent sections withintions entering the grooves of said members adapted to mine with thegrooves of corres onding conduits and to receive the covers tlierefrom,substantially as described.

2. An elbow "for conduits comprising a pair of members'having'channelsand provided with opposed grooves and movably cemnected together, andindependent sections within said members provided with groovedporroovcs'of said members adapted" to a ine with the grooves of corresending conduits and to receive the covers tiierefrom, said sectionshaving extended sides provided with'grooves, substantially as described;

grooved por- P v oi said the channel in the various ingly-shapedconduits,

eeaaee An elbow for conduits for electric wires comprising membershaving bottom and side walls, the atter being provided with olpposedgrooves, said members being movab y con-- nected together,correspondingly-shaped sections located in said members and provided W11.rooved portions entering the grooves members, said members beingpivotwnnected together, and said sections r sides extended to a ointadjacent to o t, substantially as described. l. elbow for conduitscomprising memvably connected together, means for ng theopenings'adjacent to the adjacent of said members, and sections locatedin said members and having their outer ends at a distance from the endsof the members to permit the entrance of the ends oi conduits into saidmembers, substantially as described.

5. An elbow for conduits comprising a pair of channel-like membersprovided with opposed grooves a id pivotally connected together,correspondingly-sha ed sections 10- catod in said members and avinggrooved portions entering the grooves of said members, the main portionsof the members terminating at a distance from the pivot, and one side ofthe sections also termi uating at a distance from the pivot to permitthe members to be turned at angles, said sections having extendedportions on the same side as the pivot to close the corresponding sideof justment of the members, and means to close positions of ad- Loo thespace between the opposite sides of the members described. 6. An elbowfor conduits com of channel-like members inovab y connected together andadapted to receive correspondingly-shaped conduits said members havinmeans for firmly connecting them with said conduits, to prevent movementof the conduits in a longitudinal direction, substantially described.

7 An elbow for conduits corn and the sections, substantially as rising apair rising apair of channel-like members movab y connected together andadapted. to receive correspondsaid members being! provided with prongsadapted to enter slots 1 m the conduits and tube bent to lock theconduits to the members, substantially as described.

o. [in elbow for conduits comprising channel-like members pivotallyconnected together and provided with opposed grooves,correspondingly-shaped sections located in said members and havinggrooved portions entering the grooves of the members, a guide or pocketbeing formed between the wall of the member and the correspondin wall ofa section, and a flexible strip attached to the opposite member andadapted to slide in said guide or pocket to close the space beno fopsacuing the mamofirs zinc 1 conduits "e0- gethe'r item. leng vnfise(hspiacemant substmmahy as desmlbad.

Witnesses:

- Y GEO. "3 .L.

